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Home > GC > Chapter 1 > Lesson 1.2.5 > Problem 1-95


If a triangle has two equal sides, it is called isosceles (pronounced eye-SOS-a-lees). “Iso” means “same” and “sceles” is related to “scale.” Decide whether each triangle formed by the points below is isosceles. Explain how you decided. 1-95 HW eTool (Desmos). Homework Help ✎

  1. , ,

b., ,

  1. , ,

d. , ,

The triangles described in (a), (b) and (d) are isosceles.

Use the eTool below to graph the points and view the triangles.
Click the link at right for the full version of the eTool: GC 1-95 HW eTool